white_nrdy

joined 3 months ago
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Downed Russian drone used at least 30 chips from Western companies — silicon from Xilinx, TI, Marvell, Micron, and others found in the wreckage in c/hardware@programming.dev
[–] white_nrdy@programming.dev 5 points 5 days ago

Xilinx (now AMD) does really only make FPGAs (and some CPLDs I think). However that could also mean a lot of things. For all we know they could be old as all hell and be like Spartan 3 devices, which aren't very big. Or they could also be more powerful, and thus scarier.

Okay, yeah, I see now how it can be misinterpreted when taken out-of-context in c/fedimemes@feddit.uk
[–] white_nrdy@programming.dev 7 points 3 weeks ago

I wonder if people just saw it in their feeds and didn't see the community? Since with just a few words into this comment I knew exactly what episode you were talking about... And I am sure that if I had seen your meme on chevron7 without the added context I would've known immediately. Since those are such a good couple of episodes

This toilet attachment uses AI and a team of physicians to photograph, analyse, and report the full scoop on your poop in c/technology@lemmy.world
Cars are data-harvesting machines. These brands share your personal information in c/privacy@programming.dev
[–] white_nrdy@programming.dev 1 points 1 month ago

This is the way. I just moved and got a new TV. It has never been connected to the internet and never will. My Shield TV pro handles that

Z-Wave Thermostat for 120VAC in c/homeassistant@lemmy.world
[–] white_nrdy@programming.dev 1 points 1 month ago

Thanks for the link. That one wouldn't work for me as I am in the US, so the Z-Wave freq for that is wrong.

I think that I settled on something like the relay and a manual override switch, if I do anything at all.

Z-Wave Thermostat for 120VAC in c/homeassistant@lemmy.world
[–] white_nrdy@programming.dev 2 points 1 month ago

They're great. I already have one, and they also make a double one. They also have energy monitoring as well, which is nice. I use it for control my Christmas tree around Xmas time. I have it wired together which a foot switch thing, which is great.

Z-Wave Thermostat for 120VAC in c/homeassistant@lemmy.world
[–] white_nrdy@programming.dev 2 points 1 month ago (2 children)

Yeah, this was my thought (the fact that it's just a relay), and I figured I could connect it's output to the load to the switch pin on a relay instead. I am gonna look into this possibility, since it would allow for some sort of local control if things go down. My thought is I could set the temp on the physical therm to way below the target temp (in the heating months, above the target temp in the cooling). This way it kinda also acts as a fail safe. And if HA is down and we need to override it, we can. Might need to put more thought into this though.

Also, here is a Z-Wave relay I use for another project and it works well, just FYI Zooz ZEN51

Z-Wave Thermostat for 120VAC in c/homeassistant@lemmy.world
[–] white_nrdy@programming.dev 2 points 1 month ago* (last edited 1 month ago) (6 children)

Yeah, this is something I'm also toying with. Just get a relay and temp sensor and fake it out.

However this is not my first choice, as I prefer to still have control of things if HA is down or something. So I wonder if I could wire it in with the existing therm to provide the ability to override. Like when adding a real to a switch.

Z-Wave Thermostat for 120VAC in c/homeassistant@lemmy.world
[–] white_nrdy@programming.dev 1 points 1 month ago (1 children)

I don't have control of the water temp, but I have pseudo control of the heating cooling by just turning it on or off. Which is pretty much the same premise as "normal" HVAC.

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Z-Wave Thermostat for 120VAC (programming.dev)
 

Hello all, I am moving into a new apartment, and was planning on replacing the thermostats with Z-Wave ones. I currently have a Honeywell T6 Pro Z-Wave in my current apartment, and was planning on picking up a couple more.

When I was at the new place today, I took a look inside of one of the thermostats and saw something I was not expecting. They are all 120VAC line voltage thermostats. The heating and cooling is shared between the building, and whether heating or cooling is on is a whole building schedule. The person in the leasing office that was touring us around the new place when we got our keys said that it switches to heat in october or November.

Attached are a couple of photos of the thermostat and a photo of the vent in the wall (although not sure if that is helpful). The thermostat is a Honeywell T651A. I am not sure of what the actual HVAC equipment looks like.

This obviously throws a hamper in my plans, and now I have to look for alternatives. I am not super familiar with 120VAC HVAC, so I wanted to get some advice from others. I believe it is a heated/chilled water system, and the thermostat simply controls the pump/blower in the wall panel (one of the photos). The fact that there is both heating and cooling is what is confusing me, since all of the 120VAC thermostats I have seen are only for heating. Obviously it all boils down to how the temperature is compared to the set point. If the building switches to cooling (which won't be a problem for about 6 months after it switches I am guessing), the comparison will be backwards.

If anyone is able to point me to any resources on how I can learn about this control system, that would be great. I found the Stelpro KI Z-Wave Thermostat which I think will work, but I am not sure what happens when it switches to cooling in the spring. I prefer Z-Wave since I have found it to be far more reliable (especially in a larger building. This is a 7 floor building with ~15 units on each floor. So there is a lot of 2.4GHz traffic I assume), however if anyone knows of a product that will work for this (if the Stelpro one won't) I'm all ears.

Experience with laptops in c/linuxhardware@programming.dev
[–] white_nrdy@programming.dev 3 points 3 months ago (4 children)

Also have a first gen FW. Batch 3 myself (September 2021). I've had arch running on it for years. Only gripe is battery, but that's a pretty standard gripe.